varying lowp vec2 varyTextCoord;

uniform sampler2D colorMap; //2d纹理采样器,默认的激活纹理单元(0)，没有分配值
uniform sampler2D colorMap2;


void main()
{
    
    gl_FragColor = mix(texture2D(colorMap, varyTextCoord), texture2D(colorMap2, varyTextCoord), 0.6); //采样纹理的颜色，第一个参数是纹理采样器，第二个参数是对应的纹理坐标
}

